libsuperderpy/cmake/libsuperderpy.cmake

if (NOT LIBSUPERDERPY_CONFIG_INCLUDED)

	# Set a default build type for single-configuration
	# CMake generators if no build type is set.
	if (NOT CMAKE_CONFIGURATION_TYPES AND NOT CMAKE_BUILD_TYPE)
		set(CMAKE_BUILD_TYPE RelWithDebInfo)
	endif (NOT CMAKE_CONFIGURATION_TYPES AND NOT CMAKE_BUILD_TYPE)

	if (EXISTS "${CMAKE_SOURCE_DIR}/libsuperderpy")

		set(LIBSUPERDERPY_DIR "${CMAKE_SOURCE_DIR}/libsuperderpy")

		if(NOT DEFINED LIBSUPERDERPY_NO_GAME_GIT_REV)
			execute_process(
				COMMAND git rev-parse --short HEAD
				WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
				OUTPUT_VARIABLE LIBSUPERDERPY_GAME_GIT_REV
				OUTPUT_STRIP_TRAILING_WHITESPACE
			)
		endif(NOT DEFINED LIBSUPERDERPY_NO_GAME_GIT_REV)

		include_directories("libsuperderpy/src")

	else (EXISTS "${CMAKE_SOURCE_DIR}/libsuperderpy")

		set(LIBSUPERDERPY_DIR ${CMAKE_SOURCE_DIR})

	endif (EXISTS "${CMAKE_SOURCE_DIR}/libsuperderpy")

	execute_process(
		COMMAND git rev-parse --short HEAD
		WORKING_DIRECTORY ${LIBSUPERDERPY_DIR}
		OUTPUT_VARIABLE LIBSUPERDERPY_GIT_REV
		OUTPUT_STRIP_TRAILING_WHITESPACE
	)
	add_definitions(-DLIBSUPERDERPY_GIT_REV="${LIBSUPERDERPY_GIT_REV}")

	add_definitions(-D_XOPEN_SOURCE=600)

	add_definitions(-DLIBSUPERDERPY_ORIENTATION_${LIBSUPERDERPY_ORIENTATION}=true)

	set(EMSCRIPTEN_TOTAL_MEMORY "128" CACHE STRING "Amount of memory allocated by Emscripten in asm.js builds (MB, must be multiple of 16)" )
	option(LIBSUPERDERPY_IMGUI "Compile with Dear ImGui support." OFF)
	if (LIBSUPERDERPY_IMGUI)
		enable_language(CXX)
		add_definitions(-DLIBSUPERDERPY_IMGUI)
	endif (LIBSUPERDERPY_IMGUI)

	set(CMAKE_C_STANDARD 99)
	set(CMAKE_C_STANDARD_REQUIRED ON)
	set(CMAKE_C_EXTENSIONS OFF)
	set(CMAKE_CXX_STANDARD 98)
	set(CMAKE_CXX_STANDARD_REQUIRED ON)
	set(CMAKE_CXX_EXTENSIONS OFF)

	# TODO: add -fvisibility=hidden, but only to libsuperderpy target
	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -ffast-math")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -ffast-math")

	if (NOT MAEMO5)
		# stack protector causes segfaults on Maemo
		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstack-protector")
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fstack-protector")
	endif(NOT MAEMO5)

	if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-return-type-c-linkage")
	endif()

	if(CMAKE_C_STANDARD_COMPUTED_DEFAULT EQUAL 90 OR NOT CMAKE_C_STANDARD_COMPUTED_DEFAULT)
		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99")
	endif(CMAKE_C_STANDARD_COMPUTED_DEFAULT EQUAL 90 OR NOT CMAKE_C_STANDARD_COMPUTED_DEFAULT)

	if(WIN32)
		set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mwindows -municode")
		add_definitions(-DWIN32_LEAN_AND_MEAN)
		option(LIBSUPERDERPY_DLFCN "Use built-in dlfcn with UTF-8 support" ON)
	endif(WIN32)

	if(ANDROID)
		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions -fno-rtti")
	endif(ANDROID)

	set(SANITIZERS "address,undefined" CACHE STRING "List of code sanitizers enabled for Debug builds")
	set_property(CACHE SANITIZERS PROPERTY STRINGS "" address undefined leak thread address,undefined leak,undefined thread,undefined)
	# leak sanitizer is a subset of address sanitizer
	# address/leak, memory and thread sanitizers are mutually exclusive (there can be only one at once)
	# memory sanitizer is available only as a static library so far, which breaks -Wl,--no-undefined
	# there's also fuzzer, but it doesn't seem particularly interesting for us

	if (SANITIZERS)
		set(SANITIZERS_ARGS "-fsanitize=${SANITIZERS}")
		if ("${SANITIZERS}" MATCHES "(address)|(leak)")
			set(SANITIZERS_ARGS "${SANITIZERS_ARGS} -DLEAK_SANITIZER=1")
		endif()
		if ("${SANITIZERS}" MATCHES "address")
			set(SANITIZERS_ARGS "${SANITIZERS_ARGS} -fsanitize-address-use-after-scope")
		endif()
	endif(SANITIZERS)

	if (EMSCRIPTEN)
		if(SANITIZERS_ARGS)
			message(STATUS "Sanitizers unavailable under Emscripten, disabling...")
			set(SANITIZERS_ARGS "")
		endif()
		set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g3")
		set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -g3")
	else()
		if(MAEMO5 AND SANITIZERS_ARGS)
			message(STATUS "Sanitizers unavailable under Maemo, disabling...")
			set(SANITIZERS_ARGS "")
		endif()
		set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -ggdb3")
		set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -ggdb3")
	endif()
	set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -O1 -fno-optimize-sibling-calls -fno-omit-frame-pointer -fno-common ${SANITIZERS_ARGS}")
	set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -O1 -fno-optimize-sibling-calls -fno-omit-frame-pointer -fno-common ${SANITIZERS_ARGS}")

	set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -D_FORTIFY_SOURCE=2")
	set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -D_FORTIFY_SOURCE=2")
	set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO} -D_FORTIFY_SOURCE=2")
	set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -D_FORTIFY_SOURCE=2")

	if ("${CMAKE_C_COMPILER_ID}" MATCHES "Clang")
		set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -shared-libsan")
	endif()
	if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
		set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -shared-libsan")
	endif()

	if(APPLE)
		set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,-undefined,error")
		set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-undefined,error")
	else(APPLE)
		set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--no-undefined")
		set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--no-undefined")
	endif(APPLE)

	option(USE_CLANG_TIDY "Analyze the code with clang-tidy" OFF)
	if(USE_CLANG_TIDY AND NOT MINGW)
		find_program(CLANG_TIDY_EXE NAMES "clang-tidy" DOC "Path to clang-tidy executable")
		mark_as_advanced(CLANG_TIDY_EXE)
		if(NOT CLANG_TIDY_EXE)
			message(STATUS "clang-tidy not found, analysis disabled")
		else()
			if (EXISTS "${CMAKE_SOURCE_DIR}/.clang-tidy")
				file(READ "${CMAKE_SOURCE_DIR}/.clang-tidy" CLANG_TIDY_CONFIG)
			else (EXISTS "${CMAKE_SOURCE_DIR}/.clang-tidy")
				file(READ "${CMAKE_SOURCE_DIR}/libsuperderpy/.clang-tidy" CLANG_TIDY_CONFIG)
			endif (EXISTS "${CMAKE_SOURCE_DIR}/.clang-tidy")
			string(STRIP "${CLANG_TIDY_CONFIG}" CLANG_TIDY_CONFIG)
			set(CMAKE_C_CLANG_TIDY "${CLANG_TIDY_EXE}" "-config=${CLANG_TIDY_CONFIG}")
		endif()
	endif()

	option(LIBSUPERDERPY_LTO "Use link-time optimization" OFF)
	if(POLICY CMP0069 AND LIBSUPERDERPY_LTO)
		if(NOT USE_CLANG_TIDY AND NOT MINGW) # clang-tidy + GCC + LTO = errors; also, MinGW crashes
			cmake_policy(SET CMP0069 NEW)
			include(CheckIPOSupported)
			check_ipo_supported(RESULT IPO_SUPPORTED)
			message(STATUS "Link time optimization: ${IPO_SUPPORTED}")
			if(IPO_SUPPORTED)
				set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -flto")
				set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -flto")
				set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -flto")
				set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -flto")
			endif()
		endif()
	endif()

	option(BUILD_SHARED_LIBS "Build as dynamic libraries" ON)

	option(LIBSUPERDERPY_STATIC "Compile and link libsuperderpy as a static library" OFF)
	option(LIBSUPERDERPY_STATIC_COMMON "Compile and link common routines as a static library" OFF)
	option(LIBSUPERDERPY_STATIC_GAMESTATES "Compile and link gamestates as static libraries" OFF)

	if (NOT BUILD_SHARED_LIBS)
		set(LIBSUPERDERPY_STATIC ON)
		set(LIBSUPERDERPY_STATIC_COMMON ON)
		set(LIBSUPERDERPY_STATIC_GAMESTATES ON)
	endif()

	if(LIBSUPERDERPY_STATIC_GAMESTATES)
		add_definitions("-DLIBSUPERDERPY_STATIC_GAMESTATES")
	endif(LIBSUPERDERPY_STATIC_GAMESTATES)

	option(LIBSUPERDERPY_STATIC_DEPS "Link dependencies (e.g. Allegro) statically." OFF)
	if(LIBSUPERDERPY_STATIC_DEPS)
		SET(CMAKE_FIND_LIBRARY_SUFFIXES .lib .a)
	endif(LIBSUPERDERPY_STATIC_DEPS)

	set(LIBSUPERDERPY_EXTRA_LIBS "${LIBSUPERDERPY_EXTRA_LIBS_INIT}" CACHE STRING "Additional platform libraries to link to")

	if(MAEMO5)
		add_definitions(-DMAEMO5=1)
		add_definitions(-D_Noreturn=)
	endif(MAEMO5)

	if(POCKETCHIP)
		add_definitions(-DPOCKETCHIP=1)
	endif(POCKETCHIP)

	if(MAEMO5 OR POCKETCHIP)
		add_definitions(-DLIBSUPERDERPY_EMULATE_TOUCH=1)
	endif(MAEMO5 OR POCKETCHIP)

	if(EMSCRIPTEN OR SWITCH)
		add_definitions(-DLIBSUPERDERPY_NO_RESTART=1)
	endif(EMSCRIPTEN OR SWITCH)

	set(GAMESTATE_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}")

	if(APPLE)
		if(CMAKE_INSTALL_PREFIX MATCHES "/usr/local") # HACK
			set(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}")
		endif(CMAKE_INSTALL_PREFIX MATCHES "/usr/local")

		set(GAMESTATE_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/bin/${LIBSUPERDERPY_GAMENAME}.app/Contents/MacOS/")

		set(MACOSX_BUNDLE_ICON_FILE ${LIBSUPERDERPY_GAMENAME})
		set(MACOSX_BUNDLE_BUNDLE_NAME ${LIBSUPERDERPY_GAMENAME_PRETTY})

	endif(APPLE)

	if(MINGW)
		# Guess MINGDIR from the value of CMAKE_C_COMPILER if it's not set.
		if(NOT MINGDIR)
			if("$ENV{MINGDIR}" STREQUAL "")
				string(REGEX REPLACE "/bin/[^/]*$" "" MINGDIR "${CMAKE_C_COMPILER}")
				message(STATUS "Guessed MinGW directory: ${MINGDIR}")
			else("$ENV{MINGDIR}" STREQUAL "")
				file(TO_CMAKE_PATH "$ENV{MINGDIR}" MINGDIR)
				message(STATUS "Using MINGDIR: ${MINGDIR}")
			endif("$ENV{MINGDIR}" STREQUAL "")
		endif(NOT MINGDIR)

		# Search in MINGDIR for headers and libraries.
		set(CMAKE_PREFIX_PATH "${MINGDIR}")

	endif(MINGW)

	set(CMAKE_INSTALL_RPATH "\$ORIGIN/../lib/${LIBSUPERDERPY_GAMENAME}:\$ORIGIN/gamestates:\$ORIGIN:\$ORIGIN/../lib:\$ORIGIN/lib:\$ORIGIN/bin")

	if(EMSCRIPTEN)
		set(CMAKE_EXECUTABLE_SUFFIX ".bc")
		set(CMAKE_SHARED_LIBRARY_SUFFIX ".so")

		set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -s SIDE_MODULE=2 -s EXPORTED_FUNCTIONS=[\"_Gamestate_ProgressCount\"]")
		set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} --ignore-dynamic-linking")
		set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} --ignore-dynamic-linking")
		set(EMSCRIPTEN_FLAGS -s TOTAL_MEMORY=${EMSCRIPTEN_TOTAL_MEMORY}MB --llvm-lto 1 --use-preload-plugins -s FULL_ES2=1 -s EMTERPRETIFY=1 -s EMTERPRETIFY_FILE=\"${LIBSUPERDERPY_GAMENAME}.emterpret.js\" -s EMTERPRETIFY_ASYNC=1 -s EMTERPRETIFY_WHITELIST=[\"_libsuperderpy_emscripten_mainloop\",\"_libsuperderpy_mainloop\",\"_MainloopTick\",\"_GamestateLoadingThread\"] -s INCLUDE_FULL_LIBRARY=1 -s ERROR_ON_MISSING_LIBRARIES=1)

		set(LIBSUPERDERPY_EMSCRIPTEN_MODE "wasm" CACHE STRING "Emscripten compilation mode (JavaScript or WebAssembly)")
		set_property(CACHE LIBSUPERDERPY_EMSCRIPTEN_MODE PROPERTY STRINGS "asm.js;wasm")
		if("${LIBSUPERDERPY_EMSCRIPTEN_MODE}" STREQUAL "wasm")
			set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -s WASM=1")
			set(EMSCRIPTEN_FLAGS ${EMSCRIPTEN_FLAGS} -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 --no-heap-copy)

			option(EMSCRIPTEN_DCE "Enable dead code elimination in WebAssembly build" OFF) # off by default due to issues with libc functions not getting exported
			if (EMSCRIPTEN_DCE)
				set(EMSCRIPTEN_FLAGS ${EMSCRIPTEN_FLAGS} -s MAIN_MODULE=2 -s EXPORTED_FUNCTIONS=@${CMAKE_BINARY_DIR}/emscripten-imports.json)
			else (EMSCRIPTEN_DCE)
				set(EMSCRIPTEN_FLAGS ${EMSCRIPTEN_FLAGS} -s MAIN_MODULE=1 -s EXPORT_ALL=1)
			endif(EMSCRIPTEN_DCE)

			set(CMAKE_SHARED_MODULE_SUFFIX ".wasm.so")
			add_definitions(-DLIBSUPERDERPY_WASM=1)
		else()
			set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -s WASM=0")
			set(EMSCRIPTEN_FLAGS ${EMSCRIPTEN_FLAGS} -s WASM=0 -s PRECISE_F32=1 -s MAIN_MODULE=1 -s EXPORT_ALL=1)
			set(CMAKE_SHARED_MODULE_SUFFIX ".js")
		endif()

		option(LIBSUPERDERPY_USE_WEBGL2 "Use WebGL 2 context" ON)
		if(LIBSUPERDERPY_USE_WEBGL2)
			set(EMSCRIPTEN_FLAGS ${EMSCRIPTEN_FLAGS} -s USE_WEBGL2=1)
		endif(LIBSUPERDERPY_USE_WEBGL2)

		if(CMAKE_INSTALL_PREFIX MATCHES "/usr/local") # HACK
			set(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}/output")
		endif(CMAKE_INSTALL_PREFIX MATCHES "/usr/local")
		set(GAMESTATE_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}")

	endif()

	if(ANDROID OR EMSCRIPTEN)
		add_definitions(-DLIBSUPERDERPY_SINGLE_THREAD)
	endif()

	find_package(Allegro5 REQUIRED)
	find_package(Allegro5Font REQUIRED)
	find_package(Allegro5TTF REQUIRED)
	find_package(Allegro5Primitives REQUIRED)
	find_package(Allegro5Audio REQUIRED)
	find_package(Allegro5ACodec REQUIRED)
	find_package(Allegro5Image REQUIRED)
	find_package(Allegro5Color REQUIRED)
	find_package(Allegro5Video REQUIRED)
	if(APPLE)
		find_package(Allegro5Main)
	endif(APPLE)

	include_directories(${ALLEGRO5_INCLUDE_DIR} ${ALLEGRO5_FONT_INCLUDE_DIR} ${ALLEGRO5_TTF_INCLUDE_DIR} ${ALLEGRO5_PRIMITIVES_INCLUDE_DIR} ${ALLEGRO5_AUDIO_INCLUDE_DIR} ${ALLEGRO5_ACODEC_INCLUDE_DIR} ${ALLEGRO5_VIDEO_INCLUDE_DIR} ${ALLEGRO5_IMAGE_INCLUDE_DIR} ${ALLEGRO5_COLOR_INCLUDE_DIR})

	MACRO(register_gamestate name sources)

		if (LIBSUPERDERPY_STATIC_GAMESTATES)
			add_library("lib${LIBSUPERDERPY_GAMENAME}-${name}" STATIC ${sources})
		else(LIBSUPERDERPY_STATIC_GAMESTATES)
			add_library("lib${LIBSUPERDERPY_GAMENAME}-${name}" MODULE ${sources})
		endif(LIBSUPERDERPY_STATIC_GAMESTATES)

		target_compile_definitions("lib${LIBSUPERDERPY_GAMENAME}-${name}" PRIVATE LIBSUPERDERPY_GAMESTATE=${name})

		set_target_properties("lib${LIBSUPERDERPY_GAMENAME}-${name}" PROPERTIES PREFIX "")

		if (NOT EMSCRIPTEN)
			if (TARGET lib${LIBSUPERDERPY_GAMENAME})
				target_link_libraries("lib${LIBSUPERDERPY_GAMENAME}-${name}" lib${LIBSUPERDERPY_GAMENAME} ${LIBSUPERDERPY_EXTRA_LIBS})
			else (TARGET lib${LIBSUPERDERPY_GAMENAME})
				if (NOT LIBSUPERDERPY_STATIC)
					target_link_libraries("lib${LIBSUPERDERPY_GAMENAME}-${name}" libsuperderpy ${LIBSUPERDERPY_EXTRA_LIBS})
				endif (NOT LIBSUPERDERPY_STATIC)
			endif(TARGET lib${LIBSUPERDERPY_GAMENAME})
		endif (NOT EMSCRIPTEN)

		install(TARGETS "lib${LIBSUPERDERPY_GAMENAME}-${name}" DESTINATION ${GAMESTATE_INSTALL_DIR})

		if (ANDROID)
			add_dependencies(${LIBSUPERDERPY_GAMENAME}_apk "lib${LIBSUPERDERPY_GAMENAME}-${name}")
		endif()

		if (EMSCRIPTEN)
			string(TOUPPER "CMAKE_C_FLAGS_${CMAKE_BUILD_TYPE}" CFLAGS)
			string(REPLACE " " ";" CFLAGS_L ${CMAKE_C_FLAGS})
			set(CFLAGS_LIST ${CFLAGS_L} ${${CFLAGS}})

			install(FILES "${CMAKE_BINARY_DIR}/src/gamestates/lib${LIBSUPERDERPY_GAMENAME}-${name}${CMAKE_SHARED_MODULE_SUFFIX}" DESTINATION ${CMAKE_INSTALL_PREFIX}/${LIBSUPERDERPY_GAMENAME}/gamestates)
		endif()

	ENDMACRO()

	MACRO(libsuperderpy_copy EXECUTABLE)

		if (NOT APPLE AND NOT ANDROID AND NOT LIBSUPERDERPY_STATIC)
			add_custom_command(TARGET "${EXECUTABLE}" PRE_BUILD COMMAND ${CMAKE_COMMAND} -E copy_if_different "../libsuperderpy/src/libsuperderpy${CMAKE_SHARED_LIBRARY_SUFFIX}" $<TARGET_FILE_DIR:${EXECUTABLE}>)
		endif (NOT APPLE AND NOT ANDROID AND NOT LIBSUPERDERPY_STATIC)

	ENDMACRO()

	include(InstallRequiredSystemLibraries)

	if(LIBSUPERDERPY_GAMENAME)
		configure_file("${LIBSUPERDERPY_DIR}/src/defines.h.in" "${CMAKE_BINARY_DIR}/gen/defines.h")
		include_directories("${CMAKE_BINARY_DIR}/gen")
	endif(LIBSUPERDERPY_GAMENAME)

	if (NOT DEFINED LIBSUPERDERPY_VERSION)
		set(LIBSUPERDERPY_VERSION "0.1")
	endif(NOT DEFINED LIBSUPERDERPY_VERSION)

	if (NOT DEFINED LIBSUPERDERPY_RELEASE)
		set(LIBSUPERDERPY_RELEASE "1")
	endif(NOT DEFINED LIBSUPERDERPY_RELEASE)

	if (NOT DEFINED LIBSUPERDERPY_APPID)
		set(LIBSUPERDERPY_APPID "net.dosowisko.${LIBSUPERDERPY_GAMENAME}")
	endif(NOT DEFINED LIBSUPERDERPY_APPID)

	if (ANDROID)
		set(ASSET_PIPELINE_DATADIR "${CMAKE_BINARY_DIR}/android/app/src/main/assets/data")
		set(ASSET_PIPELINE_DEPEND "")
	else (EMSCRIPTEN)
		set(ASSET_PIPELINE_DATADIR "${CMAKE_INSTALL_PREFIX}/share/${LIBSUPERDERPY_GAMENAME}/data")
		set(ASSET_PIPELINE_DEPEND ${LIBSUPERDERPY_GAMENAME}_install)
	endif()

	set(FLACTOLOSSY_DEFAULT OFF)
	set(FLACTOLOSSY_FORMAT_DEFAULT "Opus")
	set(IMGTOWEBP_DEFAULT OFF)

	if (ANDROID OR EMSCRIPTEN)
		set(FLACTOLOSSY_DEFAULT ON)
		set(IMGTOWEBP_DEFAULT ON)
	endif()

	if (MAEMO5)
		set(FLACTOLOSSY_DEFAULT ON)
		set(FLACTOLOSSY_FORMAT_DEFAULT "Vorbis")
	endif()

	if (ANDROID OR EMSCRIPTEN)
		# restrict to Android or Emscripten for now, because only those platforms have ASSET_PIPELINE_DATADIR at this moment

		option(FLACTOLOSSY "Compress FLAC audio assets to lossy format" ${FLACTOLOSSY_DEFAULT})
		set(FLACTOLOSSY_BITRATE "192" CACHE STRING "Bitrate of resulting Vorbis/Opus files (kbps)")
		set(FLACTOLOSSY_SAMPLERATE "48000" CACHE STRING "Sample rate of resulting Vorbis files (does not apply to Opus) (Hz)")
		set(FLACTOLOSSY_FORMAT ${FLACTOLOSSY_FORMAT_DEFAULT} CACHE STRING "Lossy codec to use when encoding audio files")
		set_property(CACHE FLACTOLOSSY_FORMAT PROPERTY STRINGS "Opus;Vorbis")

		if (FLACTOLOSSY)
			if (${FLACTOLOSSY_FORMAT} STREQUAL "Vorbis")
				add_definitions(-DLIBSUPERDERPY_FLACTOLOSSY_EXT="ogg")
			else()
				add_definitions(-DLIBSUPERDERPY_FLACTOLOSSY_EXT="opus")
			endif()

			add_custom_target(${LIBSUPERDERPY_GAMENAME}_flac_to_lossy
				DEPENDS ${ASSET_PIPELINE_DEPEND}
				COMMAND ${CMAKE_COMMAND} -DDATADIR=${ASSET_PIPELINE_DATADIR} -DCACHE="${CMAKE_SOURCE_DIR}/.assetcache" -DBITRATE=${FLACTOLOSSY_BITRATE} -DSAMPLERATE=${FLACTOLOSSY_SAMPLERATE} -P ${LIBSUPERDERPY_DIR}/cmake/FlacTo${FLACTOLOSSY_FORMAT}.cmake
				USES_TERMINAL)

		else(FLACTOLOSSY)
			add_custom_target(${LIBSUPERDERPY_GAMENAME}_flac_to_lossy
				DEPENDS ${ASSET_PIPELINE_DEPEND})
		endif(FLACTOLOSSY)

		option(IMGTOWEBP "Compress image assets to WebP format" ${IMGTOWEBP_DEFAULT})
		option(IMGTOWEBP_LOSSLESS "Use lossless WebP compression" OFF)
		if(IMGTOWEBP_LOSSLESS)
			set(IMGTOWEBP_QUALITY "100" CACHE STRING "Quality of resulting WebP files")
		else(IMGTOWEBP_LOSSLESS)
			set(IMGTOWEBP_QUALITY "75" CACHE STRING "Quality of resulting WebP files")
		endif(IMGTOWEBP_LOSSLESS)
		set(IMGTOWEBP_SCALE "100" CACHE STRING "Scaling factor (percentage) used when converting image assets to WebP")
		set(IMGTOWEBP_PARAMS "" CACHE STRING "Additional ImageMagick parameters")

		if(IMGTOWEBP)
			add_custom_target(${LIBSUPERDERPY_GAMENAME}_img_to_webp
				DEPENDS ${ASSET_PIPELINE_DEPEND}
				COMMAND ${CMAKE_COMMAND} -DQUALITY="${IMGTOWEBP_QUALITY}" -DRESIZE="${IMGTOWEBP_SCALE}%" -DPARAMS="${IMGTOWEBP_PARAMS}" -DCACHE="${CMAKE_SOURCE_DIR}/.assetcache" -DLOSSLESS="${IMGTOWEBP_LOSSLESS}" -DDATADIR=${ASSET_PIPELINE_DATADIR} -P ${LIBSUPERDERPY_DIR}/cmake/ImgToWebp.cmake
				USES_TERMINAL)
			add_definitions(-DLIBSUPERDERPY_IMGTOWEBP)
			add_definitions("-DLIBSUPERDERPY_IMAGE_SCALE=(${IMGTOWEBP_SCALE} / 100.0)")
		else(IMGTOWEBP)
			add_custom_target(${LIBSUPERDERPY_GAMENAME}_img_to_webp
				DEPENDS ${ASSET_PIPELINE_DEPEND})
			add_definitions(-DLIBSUPERDERPY_IMAGE_SCALE=1.0F)
		endif(IMGTOWEBP)

	else (ANDROID OR EMSCRIPTEN)
		add_definitions(-DLIBSUPERDERPY_IMAGE_SCALE=1.0F)
	endif (ANDROID OR EMSCRIPTEN)

	MACRO(add_libsuperderpy_target EXECUTABLE_SRC_LIST)
		if (LIBSUPERDERPY_STATIC_GAMESTATES)
			set(SRC_LIST ${EXECUTABLE_SRC_LIST} "${LIBSUPERDERPY_DIR}/src/gamestates-force-inclusion.c")
		else()
			set(SRC_LIST ${EXECUTABLE_SRC_LIST})
		endif()

		if(ANDROID)
			set(EXECUTABLE superderpy-game)
			add_library(${EXECUTABLE} SHARED ${SRC_LIST})

			set(APK_PATH ${CMAKE_BINARY_DIR}/android/bin/${LIBSUPERDERPY_GAMENAME}-debug.apk)

			add_custom_target(${LIBSUPERDERPY_GAMENAME}_apk ALL
				DEPENDS ${EXECUTABLE} ${LIBSUPERDERPY_GAMENAME}_flac_to_lossy ${LIBSUPERDERPY_GAMENAME}_img_to_webp
				BYPRODUCTS ${APK_PATH}
				WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/android"
				COMMAND ./gradlew assembleDebug
				USES_TERMINAL
				)

			add_custom_target(${LIBSUPERDERPY_GAMENAME}_install_apk
				DEPENDS ${LIBSUPERDERPY_GAMENAME}_apk
				WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/android"
				COMMAND adb -d install -r ${APK_PATH}
				USES_TERMINAL
				)

			add_custom_target(${LIBSUPERDERPY_GAMENAME}_run_apk
				DEPENDS ${LIBSUPERDERPY_GAMENAME}_install_apk
				COMMAND adb -d shell
				'am start -a android.intent.action.MAIN -n ${LIBSUPERDERPY_APPID}/net.dosowisko.libsuperderpy.Activity'
				USES_TERMINAL
				)

		else(ANDROID)
			add_executable(${EXECUTABLE} WIN32 MACOSX_BUNDLE ${SRC_LIST})
		endif(ANDROID)

		if(EMSCRIPTEN)

			add_custom_target(${LIBSUPERDERPY_GAMENAME}_install
				WORKING_DIRECTORY "${CMAKE_BINARY_DIR}"
				COMMAND "${CMAKE_COMMAND}" --build . --target install
				)
			string(TOUPPER "CMAKE_C_FLAGS_${CMAKE_BUILD_TYPE}" CFLAGS)
			string(REPLACE " " ";" CFLAGS_L ${CMAKE_C_FLAGS} " " ${${CFLAGS}})
			set(CFLAGS_LIST ${CFLAGS_L})

			if("${LIBSUPERDERPY_EMSCRIPTEN_MODE}" STREQUAL "wasm")
				add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/emscripten-imports.json COMMAND bash -c "(for file in ${CMAKE_INSTALL_PREFIX}/*.wasm.so; do wasm-dis $file; done) | grep \"(import \\\"env\\\" \" | awk '{print $3}' | sort -u | awk 'BEGIN {printf \"[\\\"_main\\\"\" } END {print \"]\"} {printf \",%s\", $1}' > ${CMAKE_BINARY_DIR}/emscripten-imports.json" DEPENDS ${LIBSUPERDERPY_GAMENAME}_install WORKING_DIRECTORY ${CMAKE_BINARY_DIR} USES_TERMINAL VERBATIM)
			else()
				# not implemented yet for asm.js
				add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/emscripten-imports.json COMMAND bash -c "echo '[\"_main\"]' > ${CMAKE_BINARY_DIR}/emscripten-imports.json" DEPENDS ${LIBSUPERDERPY_GAMENAME}_install WORKING_DIRECTORY ${CMAKE_BINARY_DIR} USES_TERMINAL VERBATIM)
			endif()

			add_custom_target(${LIBSUPERDERPY_GAMENAME}_js
				DEPENDS ${LIBSUPERDERPY_GAMENAME}_install ${LIBSUPERDERPY_GAMENAME}_flac_to_lossy ${LIBSUPERDERPY_GAMENAME}_img_to_webp ${CMAKE_BINARY_DIR}/emscripten-imports.json
				WORKING_DIRECTORY "${CMAKE_INSTALL_PREFIX}/${LIBSUPERDERPY_GAMENAME}"
				COMMAND "${CMAKE_C_COMPILER}" ${CFLAGS_LIST} ../bin/${LIBSUPERDERPY_GAMENAME}${CMAKE_EXECUTABLE_SUFFIX} ../lib/libsuperderpy${CMAKE_SHARED_LIBRARY_SUFFIX} ../lib/lib${LIBSUPERDERPY_GAMENAME}${CMAKE_SHARED_LIBRARY_SUFFIX} ${ALLEGRO5_LIBS} ${EMSCRIPTEN_FLAGS} -o ${LIBSUPERDERPY_GAMENAME}.html --pre-js ${LIBSUPERDERPY_DIR}/src/emscripten-pre-js.js --preload-file ../share/${LIBSUPERDERPY_GAMENAME}/data --preload-file gamestates@/
				USES_TERMINAL
				VERBATIM
				)

		endif(EMSCRIPTEN)
	ENDMACRO()

	if(ANDROID)
		set(ANDROID_TARGET "android-26" CACHE STRING "What Android target to compile for.")
		STRING(REGEX REPLACE "^android-" "" ANDROID_TARGET_VERSION ${ANDROID_TARGET})

		file(REMOVE_RECURSE "${CMAKE_BINARY_DIR}/android")
		file(COPY "${LIBSUPERDERPY_DIR}/android" DESTINATION "${CMAKE_BINARY_DIR}")

		MACRO(configure_android_file PATH)
			configure_file("${CMAKE_BINARY_DIR}/android/${PATH}.in" "${CMAKE_BINARY_DIR}/android/${PATH}" ${ARGN})
			file(REMOVE "${CMAKE_BINARY_DIR}/android/${PATH}.in")
		ENDMACRO()

		if (LIBSUPERDERPY_ORIENTATION STREQUAL "PORTRAIT")
			set(LIBSUPERDERPY_ANDROID_ORIENTATION "sensorPortrait")
		elseif(LIBSUPERDERPY_ORIENTATION STREQUAL "LANDSCAPE")
			set(LIBSUPERDERPY_ANDROID_ORIENTATION "sensorLandscape")
		else()
			set(LIBSUPERDERPY_ANDROID_ORIENTATION "unspecified")
		endif()

		if (NOT DEFINED LIBSUPERDERPY_ANDROID_DEBUGGABLE)
			set(LIBSUPERDERPY_ANDROID_DEBUGGABLE "true")
		endif(NOT DEFINED LIBSUPERDERPY_ANDROID_DEBUGGABLE)

		configure_android_file("app/src/main/AndroidManifest.xml")
		configure_android_file("local.properties")
		configure_android_file("app/build.gradle")
		configure_android_file("app/src/main/res/values/strings.xml")
		if (ALLEGRO5_LIBRARIES MATCHES "^.*-debug.*$")
			set(ALLEGRO_DEBUG_SUFFIX "-debug")
		endif()
		configure_android_file("app/src/main/java/net/dosowisko/libsuperderpy/Activity.java")

		file(COPY ${ALLEGRO5_LIBS} DESTINATION ${LIBRARY_OUTPUT_PATH})
		configure_file("${ANDROID_ALLEGRO_ROOT}/lib/allegro-release.aar" ${CMAKE_BINARY_DIR}/android/app/libs/allegro.aar COPYONLY)

		file(COPY "${CMAKE_SOURCE_DIR}/data" DESTINATION "${CMAKE_BINARY_DIR}/android/app/src/main/assets/" PATTERN "stuff" EXCLUDE
			PATTERN ".git" EXCLUDE
			PATTERN ".gitignore" EXCLUDE
			PATTERN ".directory" EXCLUDE
			PATTERN "CMakeLists.txt" EXCLUDE)

		file(COPY "${CMAKE_SOURCE_DIR}/data/icons/48/${LIBSUPERDERPY_GAMENAME}.png" DESTINATION "${CMAKE_BINARY_DIR}/android/app/src/main/res/mipmap-mdpi/")
		file(COPY "${CMAKE_SOURCE_DIR}/data/icons/72/${LIBSUPERDERPY_GAMENAME}.png" DESTINATION "${CMAKE_BINARY_DIR}/android/app/src/main/res/mipmap-hdpi/")
		file(COPY "${CMAKE_SOURCE_DIR}/data/icons/96/${LIBSUPERDERPY_GAMENAME}.png" DESTINATION "${CMAKE_BINARY_DIR}/android/app/src/main/res/mipmap-xhdpi/")
		file(COPY "${CMAKE_SOURCE_DIR}/data/icons/144/${LIBSUPERDERPY_GAMENAME}.png" DESTINATION "${CMAKE_BINARY_DIR}/android/app/src/main/res/mipmap-xxhdpi/")
		file(COPY "${CMAKE_SOURCE_DIR}/data/icons/192/${LIBSUPERDERPY_GAMENAME}.png" DESTINATION "${CMAKE_BINARY_DIR}/android/app/src/main/res/mipmap-xxxhdpi/")

	endif(ANDROID)

	# setup default RPATH/install_name handling
	# default is to build with RPATH for the install dir, so it doesn't need to relink
	if (UNIX)
		if (APPLE)
			set(CMAKE_INSTALL_NAME_DIR ${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX})
		else (APPLE)
			# use the RPATH figured out by cmake when compiling
			set(CMAKE_SKIP_BUILD_RPATH TRUE)
			set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
			set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
		endif (APPLE)
	endif (UNIX)

	# uninstall target
	configure_file("${LIBSUPERDERPY_DIR}/cmake/cmake_uninstall.cmake.in" "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake" IMMEDIATE @ONLY)
	add_custom_target(uninstall COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)

	set(LIBSUPERDERPY_CONFIG_INCLUDED 1)

endif (NOT LIBSUPERDERPY_CONFIG_INCLUDED)